What are some of the particular opportunities and challenges of being a Muslim chaplain in America on a secular university campus?

美国大学中的穆斯林教士,一般都会遇到一些,什么样的机会和挑战呢？

普林斯顿公开课 - 人性课程节选

We're going to really get into this next class, but I just want to introduce it to you to give us a start, and many of you have used Lewis structures in high school, but we'll be doing some much more challenging Lewis structures, I can assure you, in this class here.

其实我们下节课才会详细介绍它，但是今天我只想以简单介绍作为开始，大部分同学在高中就用过路易斯结构了，但是我们会遇到一些更具挑战性的,路易斯结构，我可以向大家保证，在这门课中会的。

麻省理工公开课 - 化学原理课程节选

So that was a more recent one.

上面所说的是近年来遇到的挑战。

普林斯顿公开课 - 人性课程节选